C31231211111133131211113313331333132233133313331333133313222121121   >>    C3123121111113313121111331333133313223313331333133313331322212112   <<    C31231211111133131211113313331333132233133313331333133313222121123   >>      C31231211111133131211113313331333132233133313331333133313222121122   >>